| ADIATHERMIC | • adiathermic adj. Impervious to heat. • ADIATHERMIC adj. impervious to radiant heat. | 
| DIATHERMIC | • diathermic adj. (Medicine) Of or pertaining to diathermy. • diathermic adj. That allows the free passage of heat. • DIATHERMIC adj. permeable to or able to conduct radiant heat, also DIATHERMOUS. | 
| ECTOTHERMIC | • ectothermic adj. (Zoology) Of or relating to an ectotherm; having a body temperature that varies depending on the outside temperature. • ECTOTHERMIC adj. cold-blooded. | 
| ELECTROTHERMIC | • electrothermic adj. Thermoelectric. • ELECTROTHERMIC adj. of or relating to electricity and heat, or heat obtained electrically, also ELECTROTHERMAL. | 
| ENDOTHERMIC | • endothermic adj. (Chemistry) Of a chemical reaction that absorbs heat energy from its surroundings. • endothermic adj. (Zoology) Of an animal whose body temperature is regulated by internal factors. • ENDOTHERMIC adj. characterized by or formed with absorption of heat, also ENDOTHERMAL. | 
| EURYTHERMIC | • eurythermic adj. Synonym of eurythermal. • EURYTHERMIC adj. tolerating a wide range of temperature, also EURYTHERMAL, EURYTHERMOUS. | 
| EXOTHERMIC | • exothermic adj. (Chemistry, of a reaction) That releases energy in the form of heat. • exothermic adj. (Chemistry, of a compound) That releases heat during its formation, and absorbs it during its decomposition. • exothermic adj. (Zoology) Of an animal: whose body temperature is regulated by external factors; cold-blooded. | 
| GEOTHERMIC | • geothermic adj. Geothermal. • GEOTHERMIC adj. related to the internal heat of the earth, also GEOTHERMAL. | 
| HOMEOTHERMIC | • homeothermic adj. (Zoology) Capable of maintaining a relatively constant body temperature independent of the surrounding environment. • HOMEOTHERMIC adj. keeping the same temperature, warm-blooded, also HOMOIOTHERMIC. | 
| HOMOEOTHERMIC | • homoeothermic adj. Alternative form of homeothermic. • homœothermic adj. Obsolete form of homeothermic. • HOMOEOTHERMIC adj. keeping the same temperature, warm-blooded, also HOMEOTHERMAL, HOMOEOTHERMAL, HOMOEOTHERMOUS, HOMOIOTHERMAL, HOMOTHERMAL, HOMOTHERMIC. | 
| HOMOIOTHERMIC | • homoiothermic adj. Alternative form of homeothermic. • HOMOIOTHERMIC adj. keeping the same temperature, warm-blooded, also HOMEOTHERMIC, HOMOEOTHERMIC. | 
| HOMOTHERMIC | • homothermic adj. (Biology) warm-blooded. • HOMOTHERMIC adj. keeping the same temperature, warm-blooded, also HOMEOTHERMAL, HOMOEOTHERMAL, HOMOEOTHERMIC, HOMOEOTHERMOUS, HOMOIOTHERMAL, HOMOTHERMAL. | 
| HYPERTHERMIC | • hyperthermic adj. Having a very high temperature. • hyperthermic adj. Relating to hyperthermia. • HYPERTHERMIC adj. relating to hyperthermia. | 
| HYPOTHERMIC | • hypothermic adj. Affected by hypothermia; having an abnormally low body temperature. • HYPOTHERMIC adj. relating to hypothermia. | 
| ISOGEOTHERMIC | • isogeothermic adj. Relating to isogeotherms. • ISOGEOTHERMIC n. a line on a map connecting points of equal subterranean temperature, also ISOGEOTHERM, ISOGEOTHERMAL. | 
| NORMOTHERMIC | • normothermic adj. (Medicine) Having a normal body temperature. • NORMOTHERMIC adj. relating to normothermia, normal body temperature. | 
| PHOTOTHERMIC | • photothermic adj. Relating to both light and heat. • PHOTOTHERMIC adj. of or concerned with light and heat, esp. the production of heat by light, also PHOTOTHERMAL. | 
| POIKILOTHERMIC | • poikilothermic adj. (Of an animal) Having a body temperature that varies depending on the outside temperature. • POIKILOTHERMIC adj. having a variable blood temperature, cold blooded, also POIKILOTHERMAL. | 
| THERMIC | • thermic adj. Of, related to, or associated with heat; thermal. • -thermic suff. Relating to heat or temperatures. • THERMIC adj. of or by heat, also THERMICAL. | 
| XEROTHERMIC | • xerothermic adj. (Sciences) Both hot and dry. • xerothermic adj. (Of an organism) That flourishes in hot, dry conditions. • XEROTHERMIC adj. of a region or climate, both dry and hot; of an animal or plant, living in a xerothermic environment. |